use mapcar; my( @pageorder, %pages, %validators ); BEGIN { my( $key, $page, $valid )= mapcar {[@_]} ["welcome", \&page_welcome, undef], ["address", \&page_address, \&validate_address], ["recipients", \&page_recipients, \&validate_recipients], ["preview", \&page_preview, undef], ["done", \&page_done, undef]; @pageorder= @$keys; @pages{@$keys}= @$page; @validators{@$keys}= @$valid; }